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Acacia nigrescens
Images: Click on each image to see a larger version and details of the record
Photo: Bart Wursten
Along entrance rd to Chitengo, Gorongosa National Park
Photo: Bart Wursten
Along entrance rd to Chitengo, Gorongosa National Park
Photo: Bart Wursten
Along entrance rd to Chitengo, Gorongosa National Park
Photo: Bart Wursten
Along entrance rd to Chitengo, Gorongosa National Park
Photo: Bart Wursten
Along entrance rd to Chitengo, Gorongosa National Park
Photo: Bart Wursten
Along entrance rd to Chitengo, Gorongosa National Park
Photo: Bart Wursten
Along entrance rd to Chitengo, Gorongosa National Park
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Species details: Click on each item to see an explanation of that item (Note: opens a new window)
| Synonyms: |
Acacia pallens (Benth.) Rolfe |
|
| Common names: | Knob thorn (E) Micaia (P) Ncunghu (Se) | |
| Frequency: | ||
| Status: | Native | |
| Description: |
Medium to large, deciduous tree. Bark dark brown to almost black. The trunk and main branches often covered in numerous knobs,tipped with a hooked prickle. Thorns strongly hooked, in pairs at the nodes. Leaves with 2-3 pairs of pinna, each with only 1-2 pairs of oval to near-circular leaflets. Flowers in long spikes, white, sweetly scented, appearing in great profusion before the leaves. Pod straight, pointed at the apex, dark brown, dehiscent.
Note: the leaflets are the largest of any Acacia. See A. burkei and A. mellifera for comparison. |
|
| Notes: | ||
| Derivation of specific name: | nigrescens: 'becoming black', thought to refer to either the colour of the thorns or the pods | |
| Habitat: | In hot and dry woodland and wooded grassland. | |
| Altitude range: | ||
| Flowering time: | Aug - Oct | |
| Worldwide distribution: | From Tanzania to KwaZulu-Natal and West to Botswana and the Caprivi of Namibia. | |
| Mozambique distribution: | ||
| Growth form: | T | |
| Insects (whose larvae eat this species): | ||
| Literature: | ||
| Endemic status: | ||
| Red data list status: | ||
| Spot characters: | Display spot characters for this species | |
| Content last updated: | Monday 26 July 2010 |
Other sources of information about Acacia nigrescens:
Biodiversity Explorer (Biodiversity of southern Africa): Acacia nigrescens
ePIC (electronic Plant Information Center): Acacia nigrescens
Flora Zambesiaca web site: Acacia nigrescens
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network) taxonomy for plants report for Acacia nigrescens
IPNI (International Plant Names Index): Acacia nigrescens
Kew Herbarium catalogue: Acacia nigrescens
West African Plants database: Acacia nigrescens
| Home | > | List of families | > | Mimosaceae | > | Acacia | > | nigrescens |